Cancer cases are set to rise globally as people live longer, the population is growing and there are exposures to risk factors, such as pollution.

But some countries will carry a higher burden than others, according to a new report by the World Health Organization (WHO).

The biggest increases are estimated in the African and Eastern Mediterranean regions with 125.2% and 109.8%, respectively. Due to persisting inequalities, the greatest burden of cancer is foreseen in low- and lower-middle-income countries.

That's because the global cancer picture is “one of profound inequity”.

For example, five-year survival for breast and childhood cancer is over 85% in high-income countries but drops below 45% in low-income countries, according to WHO estimates.